I’m running Copper Discover Road + Trail AT that are 3 peak rated. Did some playing around in a snow covered abandoned parking lot this weekend. Had fresh snow on top, older snow, and likely ice on the bottom. If just driving normal it was good accelerating and turning. But playing around it easily went into controlled slides. The breaking was really solid as in no sliding or fishtailing. But as someone else mentioned it is heavy. So while I never felt out of control, the weight is a huge issue, it took an extremely long time to stop and to come out of a slide, it is like stopping or turning a boat. Really glad to have experimented because I see a lot of time needs to be accounted for in real world driving for emergency stops and normal stops in general in snow.